Answer this question truthfully
### Question: Who is at highest risk for Medullary thyroid cancer ?
### Response: Clinical data have suggested that the development of medullary thyroid cancer is related to several factors.
A diet low in iodine: Clinical survey show medullary thyroid cancer are more common in areas where people's diets are low in iodine. Radiation: Scientists has proven that radiation exposure is a risk factor for follicular thyroid cancer. Such radiation includes medical treatments and radiation fallout from power plant accidents or nuclear weapons. Hereditary conditions: Studies show people with certain inherited medical conditions such as Gardner syndrome, Cowden disease, and familial adenomatous polyposis (FAP) are at higher risk of developing medullary thyroid cancer Gender: Contrary to other cancers, follicular thyroid cancers occur more often in women than in men. Age: Clinical data show that papillary and follicular thyroid cancer is usually found in people between the ages of 20 and 60 years.